IS 11169 Grade 5 Steel — Specifications & Listings

IS 11169

IS 11169 Grade 5 is a nickel chromium molybdenum spring steel per Indian Standard IS 11169, offering the highest strength and toughness in the IS 11169 series. It is used for the most demanding spring applications in defence, aerospace and heavy engineering.

Category: Alloy Steel

Grade Details

Grade	IS 11169 Grade 5
Standard	IS 11169
Description	IS 11169 Grade 5 is a nickel chromium molybdenum spring steel per Indian Standard IS 11169, offering the highest strength and toughness in the IS 11169 series. It is used for the most demanding spring applications in defence, aerospace and heavy engineering.
Applications	defence springs,aerospace springs,heavy engineering springs,high stress torsion bars,precision spring components

Chemical Composition (%)

C	Si	Mn	P	S	Cr	Ni	Mo
0.45-0.55	0.10-0.40	0.50-0.80	<=0.035	<=0.035	0.50-0.80	1.50-2.00	0.20-0.35

Mechanical Properties

tensile_strength	1400-1700 MPa
yield_strength	1250 MPa min
elongation	7-10 %
hardness	44-52 HRC

Typical Available Sizes

Round Bar	12-80 mm
Flat Bar	20-100 mm

Sizes are indicative. Contact seller for exact availability.

Active IS 11169 Grade 5 Listings on M-EX

No active IS 11169 Grade 5 listings at this time.